Archaeologists have unearthed 57 ancient Egyptian tombs, most of them containing a painted wooden sarcophagus with a mummy inside.
The Supreme Council of Antiquities says the oldest tombs date back to around 2750 BC. Twelve of the tombs belong to the 18th dynasty which ruled Egypt during the second millennium BC.
The Council says the discovery throws new light on Egypt's ancient religions.
Council chief Zahi Hawass said the mummies are covered in linen decorated with religious texts from the Book of the Dead and scenes featuring ancient Egyptian deities.
The tombs were unearthed at Lahoun, in Fayoum, some 70 miles south of Cairo.
Last year, some 53 stone tombs dating back to various ancient periods were found in the area.